Texas Instruments AFE5809 Evaluation Module AFE5809EVM AFE5809EVM Fiche De Données
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AFE5809EVM
Board Configuration
Table 3. CW Mode, ADC Clock
Clock
Reference
Description
Type
Designator
J9/J10
External CW Mode clock. The default is using onboard oscillator.
CW output for I-channel via an external operational amplifier. The EVM has converted the
differential signal CW_IP_OUTP and CW_IP_OUTM into this single-ended output through an
differential signal CW_IP_OUTP and CW_IP_OUTM into this single-ended output through an
J12
operational amplifier.
JP52/JP53
To observe CW_IP_OUTP and CW_IP_OUTM before the external operational amplifier, probe
JP52 and JP53.
JP52 and JP53.
CW Mode
CW output for V-channel via an external operational amplifier. The EVM has converted the
differential signal CW_VP_OUTP and CW_VP_OUTM into this single-ended output through an
differential signal CW_VP_OUTP and CW_VP_OUTM into this single-ended output through an
J13
operational amplifier.
JP56/JP57
To observe CW_VP_OUTP and CW_VP_OUTM before the external operational amplifier, probe
JP56 and JP57.
JP56 and JP57.
JX1
This connector shows the signals of J12 and J13 simultaneously.
JP9 selects on_board_ADC CMOS clock or external clock from J14. Default setup in
uses onboard CMOS clock. Set it to the other side to use the external clock source.
JP9/JP10
ADC
Short to power up onboard CMOS clock
J14
External ADC clock Input
11.3 Vcntl Control Input
Figure 28. Vcntl
Table 4. CW Mode and Vcntl
Connector
Description
JP15
Choose onboard Vcntl or external Vcntl. The default setup uses onboard Vcntl.
J14
External Vcntl input. The range is from 0 V to 1.5 V.
VR2
Onboard Vcntl adjustment. Use JP15 pin 3 which has the text On-Board to monitor the Vcntl voltage level.
29
SLOU338A – October 2012 – Revised November 2012
AFE5809EVM Evaluation Module
Copyright © 2012, Texas Instruments Incorporated